If I let the barrel cool between rounds I expect to get a 1000 rounds before I have to cut some off and rechamber.
I had a chance to get in some more range time. My best group was with 64.5 gr. H 1000 with the 140 gr. A max's with 3 going into .631 at 300 yds cruising at 3190 fps. My highest velocity so far was with 66 gr H 1000 pushing the 140 A Max's at just over 3300 fps but the group opened up to 1.625 at 300 yds.
I am going to try changing the seating depth and then try some Retumbo.
I also have some 140 gr VLD's to test yet.
Tarey